napa county airport 16 degrees this morning. subfreezing temperatures again, freeze warning covering all areas except san francisco. you want to watch out. you can see increased risk of hypothermia. bring in pets. you can see them burst. and live doppler seven getting ready to track a cold storm. dan? >> let's check in with laura anthony and wade freedman. wayne, we'll start with you. broken water pipes today. let's see if wayne can hear us. you're on. go ahead. >> hi, dan. i know you can't hear us. we've been in the truck, it's been so cold out here. yes. there are water pipes and people surprised about their water pipes they didn't think it affected anyone else, then, all of a sudden, boom. pop. it's them. not just an inglorious end but a loud one.. >> i heard an explosion on the roof. >> she found three little geysers not unlike this little geyser in novato. >> overnight got cold, freezing temperatures. water starts to expand in spots that aren't insulated like this one. >> did you think they said it's going to be cold, would